| Halfcastor vs King | 23–16 | 58.97% |
| Halfcastor vs Hwoarang | 18–13 | 58.06% |
| Halfcastor vs Kazuya | 10–18 | 35.71% |
| Halfcastor vs Jin | 13–13 | 50.00% |
| Halfcastor vs Dragunov | 11–14 | 44.00% |
| Halfcastor vs Asuka | 13–8 | 61.90% |
| Halfcastor vs Reina | 11–9 | 55.00% |
| Halfcastor vs Steve | 6–13 | 31.58% |
| Halfcastor vs Xiaoyu | 10–6 | 62.50% |
| Halfcastor vs Yoshimitsu | 8–7 | 53.33% |
| Halfcastor vs Eddy | 10–5 | 66.67% |
| Halfcastor vs Fahkumram | 6–6 | 50.00% |
| Halfcastor vs Bryan | 1–10 | 9.09% |
| Halfcastor vs Jun | 6–5 | 54.55% |
| Halfcastor vs Azucena | 8–3 | 72.73% |
| Halfcastor vs Lili | 8–2 | 80.00% |
| Halfcastor vs Lars | 5–5 | 50.00% |
| Halfcastor vs Lee | 6–4 | 60.00% |
| Halfcastor vs Paul | 5–4 | 55.56% |
| Halfcastor vs Victor | 2–7 | 22.22% |
| Halfcastor vs Devil Jin | 4–3 | 57.14% |
| Halfcastor vs Heihachi | 6–1 | 85.71% |
| Halfcastor vs Law | 1–5 | 16.67% |
| Halfcastor vs Jack-8 | 2–4 | 33.33% |
| Halfcastor vs Raven | 2–3 | 40.00% |
| Halfcastor vs Lidia | 4–1 | 80.00% |
| Halfcastor vs Leo | 3–0 | 100.00% |
| Halfcastor vs Alisa | 2–1 | 66.67% |
| Halfcastor vs Nina | 1–2 | 33.33% |
| Halfcastor vs Leroy | 1–2 | 33.33% |
| Halfcastor vs Armor King | 2–1 | 66.67% |
| Halfcastor vs Feng | 0–2 | 0.00% |
| Halfcastor vs Shaheen | 1–1 | 50.00% |
| Halfcastor vs Kuma | 0–2 | 0.00% |
| Halfcastor vs Panda | 1–0 | 100.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.